Copyright 1998-2010 Tweakers.net Sun, 14 Mar 2010 19:47:53 GMT Sun, 14 Mar 2010 19:47:53 GMT http://tweakers.net/reviews/76 Tweakblogs.net is the weblog service provided by Tweakers.net, the largest hardwaresite and techcommunity in the Netherlands. http://tweakblogs.net/ http://tweakimg.net/g/if/logo.gif 60 60 Tweakblogs.net en http://renegade.tweakblogs.net frontpage@tweakers.net http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39734 Het is ook niet zo dat ik perse weg wil hier vandaan. Het is wel zo dat ik het vermoeden heb dat een aantal andere zaken wezenlijk hoger op de lijst staan van zaken die nog gedaan moeten worden en ik die features eigenlijk op dat moment gewoon niet zo snel zag komen. Het kan dus zomaar zijn dat ik hier weer terecht ga komen, maar dat zullen we zien. Tot nog toe loopt het blog op mijn eigen domein beter dan verwacht, en alhoewel ik niet de bezoekers aantallen haal die ik hier op mijn blog had weet ik wel dat de mensen die nu komen ook daadwerkelijk actief op zoek zijn geweest naar die informatie of een actief interesse hebben in de zaken waar ik over schrijf. Weg van T.net krijgen jullie me in ieder geval niet zo snel. Renegade http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39734#reacties http://renegade.tweakblogs.net/blog/3528#r_39734 Wed, 10 Feb 2010 20:49:49 GMT http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39625 Oh, ik wil je niet per-sé overhalen om hier te blijven hoor, maar het is voor ons developers altijd handig om te weten waar precies behoefte aan is. Ik denk dat zeker de zaken die jij noemt ook bij anderen in de smaak zullen vallen. Technisch hebben we inderdaad al een hoop mogelijkheden die we ook op de Tweakblogs zouden kunnen inzetten. Tagging wordt binnenkort ook mogelijk op het forum. In ieder geval bedankt voor de pointers crisp http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39625#reacties http://renegade.tweakblogs.net/blog/3528#r_39625 Tue, 09 Feb 2010 20:30:41 GMT http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39614 Goed, die sessies overhevelen zou je aardig wat problemen kunnen opleveren met o.a. cookies en meer van dat soort gein. Afgezien van het feit dat ik me kan voorstellen dat je geen direkte link wil hebben tussen individuele bloggers die toevallig op dit domein zitten en wellicht met hun uitspraken naar Tweakers.net gelinkt worden. Dat die andere zaken geen hele grote uitdaging zijn kan ik me voorstellen. De twitter stream bestaat tenslotte al op de frontpage als optie (tenminste voor het @tweakers acount), RSS feeds zelf laten aantonen is ook geen probleem, en met keywords/tags wordt blijkbaar al in de DSP gewerkt aangezien die in vrijwel alle nieuwsposts te vinden zijn. De technische mogelijkheden zijn daar geloof ik ook niet zo zeer het probleem? Maar juist die zaken zou ik niet slecht vinden. Zelfs bij een gratis Wordpress account zijn zulke dingen standaard ingebouwd en ik zou het niet onaardig vinden zulke features ook hier te hebben. Ik zou ook mijn eigen domeinnaam kunnen redirecten hierheen, maar ik vind het ergens knullig staan om mijn eigen domeinnaam te registereren en hier uiteindelijk te landen op renegade.tweakblogs.net of basraayman.tweakblogs.net. Maar dat laatste is een heel persoonlijk gevoel. Oh, en iets wat ik nog zou verwelkomen is de mogelijkheid om de verschillende blogs in verschillende groepen of categorieen te kunnen indelen zodat je op de hoofdpagina in de lijst met blogs zou kunnen kiezen in zaken als "Technologie", "Fun", "Onzin" en zo bijvoorbeeld blogs die hoofdzakelijk over thema's gaan die me niet interesseren kan filteren. Renegade http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39614#reacties http://renegade.tweakblogs.net/blog/3528#r_39614 Tue, 09 Feb 2010 19:36:12 GMT http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39611 en het zou aardig zijn de mogelijkheid aan te bieden een eigen domein te gebruiken als een upgradeJa, dat is meer gevraagd. Feit is echter dat je dan geen Tnet sessies kan gebruiken (die willen we niet overhevelen naar domeinen die niet onder ons beheer zijn), en het verder ook nog wel wat voeten in aarde heeft. Om die reden beginnen we er liever niet aan. De rest zie ik er nog wel eens een keer van komen crisp http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39611#reacties http://renegade.tweakblogs.net/blog/3528#r_39611 Tue, 09 Feb 2010 19:26:09 GMT http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39558 Ik zou bijvoorbeeld graag mijn twitter stream willen kunnen laten weergeven of bijvoorbeeld een blogroll met een verkorte weergave van RSS/atom feeds. Ik mis de weergave van keywords/tags en het zou aardig zijn de mogelijkheid aan te bieden een eigen domein te gebruiken als een upgrade. De andere dingen die ik mis zijn in CSS nog wel aardig op te vangen, maar dat zijn een paar basis dingen die me zo te binnen schieten. Renegade http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39558#reacties http://renegade.tweakblogs.net/blog/3528#r_39558 Tue, 09 Feb 2010 11:58:42 GMT http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39550 maar ik heb minder mogelijkheden om mijn blog qua uiterlijk aan te passenWat mis(te) je dan precies? crisp http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39550#reacties http://renegade.tweakblogs.net/blog/3528#r_39550 Tue, 09 Feb 2010 11:23:55 GMT http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39534 Ik krijg hier misschien meer views, maar ik heb minder mogelijkheden om mijn blog qua uiterlijk aan te passen. En op mijn eigen domein heb ik één voordeel, de mensen die daarheen komen zijn specifiek geinteresseerd in hetgeen ik te schrijven heb en vinden niet toevallig een nieuwe link in de lijst van blogs. En die mensen die wel hierheen kwam voor hetgeen ik te zeggen had zullen vermoedelijk ook op dat andere adres meelezen. Renegade http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39534#reacties http://renegade.tweakblogs.net/blog/3528#r_39534 Tue, 09 Feb 2010 08:15:45 GMT http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39512 Je komt vanzelf wel weer terug wanneer je door hebt dat je hier meer views krijgt! Alexji http://renegade.tweakblogs.net/blog/3528/ive-moved-groter-dan-basraayman-punt-com.html#r_39512#reacties http://renegade.tweakblogs.net/blog/3528#r_39512 Mon, 08 Feb 2010 23:59:31 GMT http://renegade.tweakblogs.net/blog/3190/the-thing-about-certifications-and-flowers.html#r_33899 Ja, zoiets. Bedankt voor de tip, heb de zin iets aangepast zodat hij iets makkelijker te lezen is. Renegade http://renegade.tweakblogs.net/blog/3190/the-thing-about-certifications-and-flowers.html#r_33899#reacties http://renegade.tweakblogs.net/blog/3190#r_33899 Thu, 03 Dec 2009 18:40:50 GMT http://renegade.tweakblogs.net/blog/3190/the-thing-about-certifications-and-flowers.html#r_33897 It just says that they keep certain standards for they way they work, and they try to improve on those standards that were defined.Zeg, beetje teveel they gedronken? Barleone http://renegade.tweakblogs.net/blog/3190/the-thing-about-certifications-and-flowers.html#r_33897#reacties http://renegade.tweakblogs.net/blog/3190#r_33897 Thu, 03 Dec 2009 18:30:00 GMT http://renegade.tweakblogs.net/blog/3190/the-thing-about-certifications-and-flowers.html#r_33896 Can't really agree on the last paragraph... We all know of have had to work with people that came highly certified only because they we able to memorize a book and not have a clue what it actually meant. In the last 12 odd years, I was able to change employer 3 times and all accepted my (confirmed and signed) previous work-experience over the fact I was not certified whatsoever. Salary increased, work-responsibility increased and such. Certification: yes. But I do think one needs to scratch his/her head if what you are learning/studying is actually what you want and not certify "because my boss feels it is necessary". MAX3400 http://renegade.tweakblogs.net/blog/3190/the-thing-about-certifications-and-flowers.html#r_33896#reacties http://renegade.tweakblogs.net/blog/3190#r_33896 Thu, 03 Dec 2009 18:28:31 GMT http://renegade.tweakblogs.net/blog/3190/the-thing-about-certifications-and-flowers.html#r_33895 Linkback: http://basraayman.com/200...rtifications-and-flowers/ Renegade http://renegade.tweakblogs.net/blog/3190/the-thing-about-certifications-and-flowers.html#r_33895#reacties http://renegade.tweakblogs.net/blog/3190#r_33895 Thu, 03 Dec 2009 17:27:57 GMT http://renegade.tweakblogs.net/blog/3117/gestaltit-tfd-day-2-wind-instruments-and-data-deduplication.html#r_33643 Thanks everyone for the great comments. Apologies for not jumping in here sooner. I'll see if I can address the main comments. @himlims_: Part of our differentiation over say DataDomain is the fact that we invest in content expertise (smart algorithm PhD's), and we've solved a lot of the problems around integrating compression and dedupe into a single solution (these algorithms tend to pull against each other). Although we started life focusing on Petabyte-scale customers with dedicated multi-core solutions, we've started opening up our solution to small customers. Our smallest customer is in the 20TB range today, and our pricing is inline with that kind of deployment. Definitely not SOHO, but we have designs for that as well. @Floort: I should clarify that we don't run code on your system. We are not a "WinZIP replacement". We run as an out-of-band solution that works under-the-covers in your NAS appliance (either SW or HW depending on the vendor). With this approach, we run transparently with no visible change to the file types for your end-users or applications. Although policies mitigate local CPU impact, you probably still wouldn't want to run the compression code on your laptop (although running decompression code there might be attractive to some). It's also worth pointing out that we are focused on the harder problem of primary storage, not backup. Even grade-school dedupe works wonders when taking full-backup after full-backup. So living in the primary storage world with less data redundancy we have to advance the state-of-the-art a bit. And if we do ship something for backup it will be wayyy better than existing technologies ;-) We use specific and generic, open and proprietary algorithms depending on what the input logic tells us about the data. it's a simple matter of ROI; if adding an algorithm shrinks data better, then it's worth adding it. Adding algorithms doesn't add complexity or technology risk per se because a buggy algorithm is simply an algorithm that doesn't shrink data well, and our context engine will ignore it. But without some of these content-specific algorithms we would not provide the benefits we have today for vertical applications like photos, videos, DNA sequencing, seismic interpretation, etc. @Renegade: All good points. Dedupe comes primarily in 3 flavors; fixed block, sliding block, file single instancing. Ocarina uses a sliding block algorithm that is informed by our delayering algorithms. In other words we have good hints as to how to make a more efficient sliding block. One of the problems we see with Microsoft Office 2007+ formats is that they are compressed by default, and that completely foils traditional dedupe schemes. If your editor changes a single letter in that Powerpoint, then *all* the bytes in the file change, and dedupe goes to 0%. But if you first unwrap the file, identify the image and text sub-objects in that document, dedupe then compress them with the ideal algorithms, then you can achieve fantastic results. We're even pretty good at doing this for files we've never seen before. Mike Davis http://renegade.tweakblogs.net/blog/3117/gestaltit-tfd-day-2-wind-instruments-and-data-deduplication.html#r_33643#reacties http://renegade.tweakblogs.net/blog/3117#r_33643 Tue, 01 Dec 2009 01:08:43 GMT http://renegade.tweakblogs.net/blog/3117/gestaltit-tfd-day-2-wind-instruments-and-data-deduplication.html#r_32598 I found the answer in the pdf you linked to: The gain in my situation (Backups) would be tiny. Floort http://renegade.tweakblogs.net/blog/3117/gestaltit-tfd-day-2-wind-instruments-and-data-deduplication.html#r_32598#reacties http://renegade.tweakblogs.net/blog/3117#r_32598 Thu, 19 Nov 2009 19:25:58 GMT http://renegade.tweakblogs.net/blog/3117/gestaltit-tfd-day-2-wind-instruments-and-data-deduplication.html#r_32540 Please note that it's important to check what kind of solution you are using. If you are using a NetApp for example, you don't use any compression, and the NetApp uses it's WAFL environment to dedupe in 4k block increments. The Ocarina optimizers can selectively use deduplication, compression or both. So, to try and answer your question, a block only dedupe will have problems in finding similarities that cross blocks. Take the example of a powerpoint file which has been changed. A block level dedupe will dedupe the blocks that make up each file which will probably get you some good results, but actually checking which files (or parts of files) are there multiple times will get you way better results because you avoid even having to write the deduped blocks to begin with. Say for example:You have a file with 8K, since you mailed it around you will see similar chunks on disk which can be deduped.Now someone edits the file on one page and sends it back.You get to save a second file with changed chunks and the pointers for the other people who received this new file.Now, in this scenario we already have two files which probably still contain the same logo's and headers, footers and all and will usually just have some minor changes. The charm of the Ocarina solution (or a general content aware dedupe solution) is that it will know that there are large unchanged parts. So, using the example above:You have a file with 8K, since you mailed it around you will see similar chunks on disk which can be deduped.Now someone edits the file on one page and sends it back.Content aware dedupe finds that there is just one new page and just saves the new information on this page and uses pointers for everything else.Basically this content aware dedupe solution should run before you actually save the file to disk because it could save you on actual blocks that need to written to disk. And you still have the fact that this solution would still allow you to use storage based dedupe from any vendor like for example EMC, NetApp or BlueArc. A further example of the Ocarina benefits would be that you can use policies (which files to dedupe, define minimum/maximum sizes, control over block and compression sizes, etc). You can check the outcome of a test where an Ocarina optimizer was compared to a NetApp box here. In regards to the price of the optimizers I can't say too much since I don't have any product pricing, but I know some people from Ocarina are also reading and might be able to add something to the discussion. One tip I can give you is the ROI calculator which can be found here: http://www.ocarinanetworks.com/calculator/index.html Renegade http://renegade.tweakblogs.net/blog/3117/gestaltit-tfd-day-2-wind-instruments-and-data-deduplication.html#r_32540#reacties http://renegade.tweakblogs.net/blog/3117#r_32540 Thu, 19 Nov 2009 08:32:01 GMT http://renegade.tweakblogs.net/blog/3117/gestaltit-tfd-day-2-wind-instruments-and-data-deduplication.html#r_32528 I meant the benefit of the content aware dedup versus block based dedup. I understand the fact that dedup itself can save a lot of space. But the savings of block based dedup are huge by itself. You can improve it even better by adding a smarter chunking algorithm. But writing a bunch of content aware algorithms for each type of file you need to store can add a huge amount of code to your system. And this in turn increases the cost and possibly the reliability. To demonstrate how effective "dumb" block-based dedup is, here is the output of my small testserver that just finished it's backup: ====== Backing up /var ===== files & dirs: 555 read size: 5960780 compressed size: 6049 shas: 780 unique shas: 9 dedup size: 5922147 total written size: 6654 dedup reduction ratio: 100% compression reduction ratio: 16% overal reduction ratio: 99% ====== Backing up /etc ===== files & dirs: 250 read size: 3350122 compressed size: 0 shas: 376 unique shas: 0 dedup size: 3350122 total written size: 0 dedup reduction ratio: 100% compression reduction ratio: 0% overal reduction ratio: 100% ====== Backing up /home ===== files & dirs: 64 read size: 6272860 compressed size: 0 shas: 426 unique shas: 0 dedup size: 6272860 total written size: 0 dedup reduction ratio: 100% compression reduction ratio: 0% overal reduction ratio: 100% Floort http://renegade.tweakblogs.net/blog/3117/gestaltit-tfd-day-2-wind-instruments-and-data-deduplication.html#r_32528#reacties http://renegade.tweakblogs.net/blog/3117#r_32528 Thu, 19 Nov 2009 01:00:18 GMT http://renegade.tweakblogs.net/blog/3117/gestaltit-tfd-day-2-wind-instruments-and-data-deduplication.html#r_32526 Why would you go to all the trouble of writing software to scan the contents of a huge variety of filetypes. This makes the software massively more complex (and expensive).well, many corporate storage systems will have to deal with lots and lots of, right, documents. endless numbers of powerpoint presentations, for example. now for a 20-head office, no biggie. but a 1000-head office (multiple locations, central storage or something alike) could save quite a bit of room by being even a bit more efficient in dedupping every .ppt that comes by. now do this for lots of different filetypes, and you have saved quite a bit of space on the storage systems already. now take into account the cacheing of these parts of files. less reads on the disks and more on, say, memory or SSD buffers, makes for a lot of added throughput. if this would save €25.000 on a storage system (quite a high figure, I suppose, but that doesn't matter here, it's about the ratio) a company would gladly pay €20.000 for a product like this, because, well, it's still a €5.000 saving. now if, for example, in times of financial crisis, you'd be faced with having to do a massive upgrade to your storage infrastructure, software like this would extend the economic lifetime of the old systems a bit further - and you could always transfer the licence to the new system a year from now anyway (disclaimer: I'm no expert, but since that hardly seems to matter here on tweakblogs most of the time () I thought I'd put in my $0.02) iceheart http://renegade.tweakblogs.net/blog/3117/gestaltit-tfd-day-2-wind-instruments-and-data-deduplication.html#r_32526#reacties http://renegade.tweakblogs.net/blog/3117#r_32526 Wed, 18 Nov 2009 23:27:16 GMT http://renegade.tweakblogs.net/blog/3117/gestaltit-tfd-day-2-wind-instruments-and-data-deduplication.html#r_32523 I wonder what you gain by running a "content aware" dedup system versus a "block based" dedup system. I currently use a simple block based dedup system for my personal backups and I really like it. I get a full filesystem snapshot of all my systems for just a few megabytes a day. Now ZFS has gained block based dedup capabilities you cen even get this build in your own filesystem. Why would you go to all the trouble of writing software to scan the contents of a huge variety of filetypes. This makes the software massively more complex (and expensive). Floort http://renegade.tweakblogs.net/blog/3117/gestaltit-tfd-day-2-wind-instruments-and-data-deduplication.html#r_32523#reacties http://renegade.tweakblogs.net/blog/3117#r_32523 Wed, 18 Nov 2009 21:23:49 GMT http://renegade.tweakblogs.net/blog/3117/gestaltit-tfd-day-2-wind-instruments-and-data-deduplication.html#r_32518 Sound too good to be true, but if they could for fill their claims it could have quite some impact on current systems. What is this going to cost? And how about the de-compressing (time)? himlims_ http://renegade.tweakblogs.net/blog/3117/gestaltit-tfd-day-2-wind-instruments-and-data-deduplication.html#r_32518#reacties http://renegade.tweakblogs.net/blog/3117#r_32518 Wed, 18 Nov 2009 17:40:52 GMT http://renegade.tweakblogs.net/blog/3041/gestaltit-quiz-part-3-7-symantec-does-storage-win-an-ipod-nano-(among-others).html#r_31285 Gestalt IT, might I suggest you check here for some more info on them? Renegade http://renegade.tweakblogs.net/blog/3041/gestaltit-quiz-part-3-7-symantec-does-storage-win-an-ipod-nano-(among-others).html#r_31285#reacties http://renegade.tweakblogs.net/blog/3041#r_31285 Fri, 06 Nov 2009 09:56:35 GMT http://renegade.tweakblogs.net/blog/3041/gestaltit-quiz-part-3-7-symantec-does-storage-win-an-ipod-nano-(among-others).html#r_31281 Gestalt who? Arfman http://renegade.tweakblogs.net/blog/3041/gestaltit-quiz-part-3-7-symantec-does-storage-win-an-ipod-nano-(among-others).html#r_31281#reacties http://renegade.tweakblogs.net/blog/3041#r_31281 Fri, 06 Nov 2009 09:47:56 GMT http://renegade.tweakblogs.net/blog/3036/gestaltit-quiz-part-1-7-what-the-xsigo-win-an-ipod-nano-(among-others).html#r_31167 haha, die regels voor die quiz zijn hilarisch! X-DraGoN http://renegade.tweakblogs.net/blog/3036/gestaltit-quiz-part-1-7-what-the-xsigo-win-an-ipod-nano-(among-others).html#r_31167#reacties http://renegade.tweakblogs.net/blog/3036#r_31167 Thu, 05 Nov 2009 08:43:15 GMT http://renegade.tweakblogs.net/blog/3036/gestaltit-quiz-part-1-7-what-the-xsigo-win-an-ipod-nano-(among-others).html#r_31151 Btw in the fine print of the contest rules ( http://gestaltit.com/feat...g-tech-field-day-contest/ ) it says the following:Canadians and others with similar laws must demonstrate the skill of knowing the answers to the quiz questions. Americans apparently need no special skills.Should we show skills as Europeans or can we join the Americans in this one? Japke http://renegade.tweakblogs.net/blog/3036/gestaltit-quiz-part-1-7-what-the-xsigo-win-an-ipod-nano-(among-others).html#r_31151#reacties http://renegade.tweakblogs.net/blog/3036#r_31151 Wed, 04 Nov 2009 21:58:04 GMT http://renegade.tweakblogs.net/blog/3025/prepare-to-zjoin-ze-gestalt!-or-gestaltit-tech-field-day-preparation.html#r_31051 Depends on where you perform the dedupe or on which layer you concentrate. If you take the file level example that I stated you would have no problem since the file is only stored once and you use pointers. After performing a defrag you still have the same file, just at a different location so the dedupe would not be affected on this level. Bit level dedupe is a different story. You have the problems you mentioned. Another example would be using encryption on a drive. This usually also tends to kil any dedupe or thin provisioning efforts you made. But I'll be sure to ask the question and report back with their comments! Renegade http://renegade.tweakblogs.net/blog/3025/prepare-to-zjoin-ze-gestalt!-or-gestaltit-tech-field-day-preparation.html#r_31051#reacties http://renegade.tweakblogs.net/blog/3025#r_31051 Tue, 03 Nov 2009 18:09:48 GMT http://renegade.tweakblogs.net/blog/3025/prepare-to-zjoin-ze-gestalt!-or-gestaltit-tech-field-day-preparation.html#r_31044 Thanks for the explanation though I work with dedupe on VMWare and NetApp. Dedupe is quite a nice technology but imho still in its infancy. Maybe a nice example to present to GestaltIT how they would handle this: Storing a number of very similar Windows VM's on a NetApp which is running dedupe and assume that the gain in storage is about 80% (so 20% individual bits, 80% similar bits). Now, defrag the VM's within the guest-OS. How will this affect dedupe, the storage needed at the moment of deduplication and the resulting similarity of the bits? MAX3400 http://renegade.tweakblogs.net/blog/3025/prepare-to-zjoin-ze-gestalt!-or-gestaltit-tech-field-day-preparation.html#r_31044#reacties http://renegade.tweakblogs.net/blog/3025#r_31044 Tue, 03 Nov 2009 16:41:28 GMT http://renegade.tweakblogs.net/blog/3025/prepare-to-zjoin-ze-gestalt!-or-gestaltit-tech-field-day-preparation.html#r_31043 Typo fixed, thanks for letting me know. A dataset can basically be anything, depending on where you would put the definition. But say for example you have a Powerpoint file and mail it to three people. One makes a small change and mails it back. In a normal environment you would see that you have a grand total of 8 files lying around. 2 versions with 4 identical copies each. Why would you want to store each individual file? Why not store the original once and the modified version once and just put pointers or references to these stored files so that you don't consume so much disk space? Or perhaps, even go a step further and try to find which slides in the Powerpoint remained unchanged and use pointers there and only keep the changed slides in the modified version. That is the basic concept of dedupe, and depending on where you would look (duplicate files, modified files, duplicate files on disk, duplicate bit patterns on disk, etc), that is where your dataset is defined. Renegade http://renegade.tweakblogs.net/blog/3025/prepare-to-zjoin-ze-gestalt!-or-gestaltit-tech-field-day-preparation.html#r_31043#reacties http://renegade.tweakblogs.net/blog/3025#r_31043 Tue, 03 Nov 2009 16:28:04 GMT http://renegade.tweakblogs.net/blog/3025/prepare-to-zjoin-ze-gestalt!-or-gestaltit-tech-field-day-preparation.html#r_31042 Might wanna read what you type: "...Ocarina Networks specializes in data deplication. Basically..." I do think that needs to be data deduplication, but just a minor issue? Not exactly a clue what would be seen as a dataset but why not try 2 exactly the same files (like a sql dump), archive them both in exactly the same way, but one with a password or encryption attached? MAX3400 http://renegade.tweakblogs.net/blog/3025/prepare-to-zjoin-ze-gestalt!-or-gestaltit-tech-field-day-preparation.html#r_31042#reacties http://renegade.tweakblogs.net/blog/3025#r_31042 Tue, 03 Nov 2009 16:22:13 GMT http://renegade.tweakblogs.net/blog/2972/you-are-an-industry-thought-leader-ehm-did-you-pick-the-right-guy.html#r_30461 At twitter: Yes, @BasRaayman, you are an industry thought leader! Renegade's technical diatribe... It's confirmed Cruz http://renegade.tweakblogs.net/blog/2972/you-are-an-industry-thought-leader-ehm-did-you-pick-the-right-guy.html#r_30461#reacties http://renegade.tweakblogs.net/blog/2972#r_30461 Sun, 25 Oct 2009 10:59:33 GMT http://renegade.tweakblogs.net/blog/2972/you-are-an-industry-thought-leader-ehm-did-you-pick-the-right-guy.html#r_30431 Paddo has it right. The profit is in the publicity the companies stand to get. But there's also profit for the attendees: They get hands-on time with cool tech, they get contacts in the companies, and they get to be part of a community of thought leaders (and Bas! ). It's a win-win! Stephen Foskett http://renegade.tweakblogs.net/blog/2972/you-are-an-industry-thought-leader-ehm-did-you-pick-the-right-guy.html#r_30431#reacties http://renegade.tweakblogs.net/blog/2972#r_30431 Sat, 24 Oct 2009 13:24:23 GMT http://renegade.tweakblogs.net/blog/2972/you-are-an-industry-thought-leader-ehm-did-you-pick-the-right-guy.html#r_30391 28 queries. 1.720 seconds.Performance is pretty bad on that wordpress server, the site looks like it's not really worth taking a look at, and the blog post seemed a little advertisement only value to me.The big difference to a regular conference? It's not sponsored by a big company. The main point is not profit. The people there are free to say what they want and can write about the things that they find interesting.That's pure profit for companies producing the things review if it's good, or other companies thinking about beating the products reviewed based on con's. PaddoSwam http://renegade.tweakblogs.net/blog/2972/you-are-an-industry-thought-leader-ehm-did-you-pick-the-right-guy.html#r_30391#reacties http://renegade.tweakblogs.net/blog/2972#r_30391 Fri, 23 Oct 2009 17:48:05 GMT http://renegade.tweakblogs.net/blog/2972/you-are-an-industry-thought-leader-ehm-did-you-pick-the-right-guy.html#r_30387 Thanks! Each sponsor pays a relatively small fee since there is no intention on making a profit. The fees will be used to pay for the hotel and tickets of the people who will come and to set up some things like food and such. So yes, that is a great deal. On the other hand, I'm taking some days off from work since it's not related to my work directly, but to the blogging and tweeting I do in my spare/free time which covers a much broader base than my 'regular job' requires me to do. But either way I'm pretty psyched. Renegade http://renegade.tweakblogs.net/blog/2972/you-are-an-industry-thought-leader-ehm-did-you-pick-the-right-guy.html#r_30387#reacties http://renegade.tweakblogs.net/blog/2972#r_30387 Fri, 23 Oct 2009 15:02:32 GMT http://renegade.tweakblogs.net/blog/2972/you-are-an-industry-thought-leader-ehm-did-you-pick-the-right-guy.html#r_30386 Congratulations. The opportunity to attend a conference related to your line of work is one to embrace with both hands, I'd say. I do have to ask though: was it just the invitation to attend the event that excites you, or do they actually pay your flight, stay etcetera as well? Thijs_O http://renegade.tweakblogs.net/blog/2972/you-are-an-industry-thought-leader-ehm-did-you-pick-the-right-guy.html#r_30386#reacties http://renegade.tweakblogs.net/blog/2972#r_30386 Fri, 23 Oct 2009 14:58:26 GMT http://renegade.tweakblogs.net/blog/2948/the-kindle-is-coming-to-europe!-hurray-so-what.html#r_30037 E-readers are interesting, but in my opinion it still has a long to go. First, you have the look and feel of it. I would be really nice if they really looked like a book: a double screen to be able to read 2 pages, and a book you can really close when you are finished. You could get different covers, make your own, or, in the future, have digital covers that can show which book was last read. But that last one would be just a nice gimmick, which would just eat unnecessary battery time anyway. For me it the looks just don't appeal at the moment. Second, the pricing of the books in combination with DRM. You can get cheap books in second hand stores and internet, but you can't (yet) get cheap e-books. For example: the Dutch book Herman Koch - Het Diner costs 20 euro new as a book, 16 euro in digital format, but only 10 euro second hand. You can also sell it again for probably that amount if you are finished with it, which is, as far as I know, not possible with the digital version. While the DRM in the music business is slowly being seen as a no-go, the e-books are again protected with it. For a good reason, because copying is much easier than copying normal books. But still, you sometimes lend a book from a friend, or buy it for a few euro on the internet, which, at the moment, seems strictly prohibited or impossible. E-books are cheaper than normal books, luckily they are, but that price can be held up at that point artificially and never or slower drop. This has to show itself though, it is all too new to really see where it's going with price/DRM, but it looks a bit dark. Third: the pricing of the e-readers is still too high. But as technology progresses, it surely will drop below €100,- in the near future, with better specs and nifty features. And the last, but for me not the least point of attention: renting. I don't have that many books, for I am a regular visitor of the library. Only if I find myself walking to the library for the same book over and over again, I will buy it, otherwise I'm not interested to waste valuable space with books only for the looks or to show visitors what great books I read. But how would you organise that. In principle it could mean paying a montly or annual fee to get all the books you want, on demand via 3G or something. Which would make the principle of 'buying an e-book' virtually unnecessary. You can't make it too cheap, or else the income of the writers/companies would go down, but you can't make it expensive either, for that does not align with the idea of the present libraries: books for everyone, even the poorest. Also a bit early to think about it, but I'm really interested how it will develop in this (logical) way of having access to all the books, always, just like tv and music is now developing to. All in all the future can look great, and hopefully the worldwide introduction of the Kindle will speed up the development of the whole system, and get out the kinks and really advance the whole system of information for everybody, everywhere. That would be a real big step forward. TerraGuy http://renegade.tweakblogs.net/blog/2948/the-kindle-is-coming-to-europe!-hurray-so-what.html#r_30037#reacties http://renegade.tweakblogs.net/blog/2948#r_30037 Sun, 18 Oct 2009 18:58:19 GMT http://renegade.tweakblogs.net/blog/2948/the-kindle-is-coming-to-europe!-hurray-so-what.html#r_30036 I'm confused. Are you talking about Apple creating an e-reader (Steve Jobs) or Microsoft (Steve Ballmer)? pkwarts http://renegade.tweakblogs.net/blog/2948/the-kindle-is-coming-to-europe!-hurray-so-what.html#r_30036#reacties http://renegade.tweakblogs.net/blog/2948#r_30036 Sun, 18 Oct 2009 18:38:04 GMT http://renegade.tweakblogs.net/blog/2948/the-kindle-is-coming-to-europe!-hurray-so-what.html#r_30028 You are welcome. But on a more serious note, you really think that? How many operating systems or products are really original? Linux isn't, that's for sure and Apple pulls off some nice touches once in a while, but they also do the same thing. Real innovation is something that is quite rare, but adaptation and introducing new features is something that is seen every day. Renegade http://renegade.tweakblogs.net/blog/2948/the-kindle-is-coming-to-europe!-hurray-so-what.html#r_30028#reacties http://renegade.tweakblogs.net/blog/2948#r_30028 Sun, 18 Oct 2009 10:41:31 GMT http://renegade.tweakblogs.net/blog/2948/the-kindle-is-coming-to-europe!-hurray-so-what.html#r_30027 Microsoft or Steve Ballmer are not the kind of players in this market to just copy someone else's product and features and then introduce it on the market.thanks for making me laugh !GN!T!ON http://renegade.tweakblogs.net/blog/2948/the-kindle-is-coming-to-europe!-hurray-so-what.html#r_30027#reacties http://renegade.tweakblogs.net/blog/2948#r_30027 Sun, 18 Oct 2009 10:27:17 GMT http://renegade.tweakblogs.net/blog/2934/lo-and-behold!-the-emc-community-expert!-or-something.html#r_29976 @ YopY while success is not guaranteed it CAN be beneficial punisher007 http://renegade.tweakblogs.net/blog/2934/lo-and-behold!-the-emc-community-expert!-or-something.html#r_29976#reacties http://renegade.tweakblogs.net/blog/2934#r_29976 Fri, 16 Oct 2009 15:46:52 GMT http://renegade.tweakblogs.net/blog/2934/lo-and-behold!-the-emc-community-expert!-or-something.html#r_29903 So, to end this with a question. Is being successful in one online community also beneficial if you want to be successful in other online communities?Nope. I run a good active community (forums) and am the man on there pretty much, but fail to stand out here on T.net - I think. Possibly because there's people on my level here, and people who don't know anything about anything slightly technical on there. YopY http://renegade.tweakblogs.net/blog/2934/lo-and-behold!-the-emc-community-expert!-or-something.html#r_29903#reacties http://renegade.tweakblogs.net/blog/2934#r_29903 Thu, 15 Oct 2009 11:15:28 GMT http://renegade.tweakblogs.net/blog/2934/lo-and-behold!-the-emc-community-expert!-or-something.html#r_29902 not only attitude i might add... 'living' inside a community is hard work, compared to say explaining $somethingelse in real life, - i think that textbased comunication is allways a bit more difficult than talking to somewhone live... btw - congrats on your promotion ... i-chat http://renegade.tweakblogs.net/blog/2934/lo-and-behold!-the-emc-community-expert!-or-something.html#r_29902#reacties http://renegade.tweakblogs.net/blog/2934#r_29902 Thu, 15 Oct 2009 11:10:34 GMT http://renegade.tweakblogs.net/blog/2934/lo-and-behold!-the-emc-community-expert!-or-something.html#r_29893 Sure, it shows you have the right attitude at least. punisher007 http://renegade.tweakblogs.net/blog/2934/lo-and-behold!-the-emc-community-expert!-or-something.html#r_29893#reacties http://renegade.tweakblogs.net/blog/2934#r_29893 Thu, 15 Oct 2009 08:59:27 GMT